News

Study found impact remnants on the Moon that may provide source of water

A study led by the National Space Science Center of Chinese Academy of Sciences and joined by Prof. Wu Bo, Associate Head of LSGI and Director of Research Centre for Deep Space Explorations, has found carbonaceous chondrite remnants of an impactor in a young lunar crater formed within one million years, a first-time discovery of such fragments by in-situ investigation on the far side of the Moon. Scientists suggests that carbonaceous chondrite-like meteorites may provide 10 to 20% of the sources of water to the present Moon. Prof. Wu’s involvement in the research was to use innovative 3D mapping technology to create a detailed 3D topographic model of the 2-m size crater from the lunar surface images acquired by the Yutu-2 rover of Chang’e-4. The 3D morphological characteristic of the crater is critical to judge if the crater was resulted from a meteorite impact or not. The results were published in the scientific journal Nature Astronomy (https://doi.org/10.1038/s41550-021-01530-w).  

LSGI and BRE Students gained the merit award in the WGO competition

2020 - 2021 Social Innovation Inventor Design Competition hosted by the World Green Organisation (WGO) has been successfully ended in September 2021. The team formed with LSGI and BRE students, including Kai Wing TAI (LSGI), Ching Hei CHAN (BRE) and Tsin Tung NG (BRE), gained the merit award/ award of finalists in Tertiary Group.

27th Congregation 2021 - LSGI Session

On 17 November 2021, the 27th Congregation of Faculty of Construction and Environment - LSGI session was held at the Jockey Club Auditorium on the PolyU campus as well as online. More than 110 graduates from LSGI were honoured for completing their studies at higher diploma, undergraduate and postgraduate levels.   Presiding at the congregation was Prof. Xiang-dong Li, Dean of FCE, who congratulated the graduates and encouraged them to stay connected to PolyU by joining one of its alumni associations. LSGI’s graduate representative Ms Tai Kai Wing gave a valedictory speech to show the gratitude to their parents, professors, instructors and classmates of the Class of 2021.  It was a memorable occasion for all concerned.   Congratulations to all Class of 2021!

LSGI Visiting PhD Student won the Prestigious “Zhu Kezhen” Prize from the Hong Kong Meteorological Society

Mr. Mingchen Zhu, a visiting PhD student from the Micro-Laboratory of Atmospheric Research and Geomatics Engineering (Micro-LARGE), Department of Land Surveying & Geo-Informatics (LSGI), the Hong Kong Polytechnic University (PolyU), has won the prestigious “Zhu Kezhen” Prize for the year 2021 from the Hong Kong Meteorological Society (HKMetS). The soon-to-be PhD graduate from the Southeast University, Nanjing, Mainland China, did 6-month visiting research in 2018 at Prof. George Liu’s Micro-LARGE Lab, an internationally recognized group for atmospheric water vapor observation, modeling, calibration and evaluation using advanced multi-sensors of satellite- and land-based instruments.  The “Zhu Kezhen” Prize is given only when one meritorious publication in the field of meteorology has been identified. This prize is set to commemorate the outstanding service of the founding Chairman, Mr. Patrick Sham Pak, to the Hong Kong Meteorological Society and in honour of the distinguished Chinese meteorologist, Zhu Kezhen. The prize comes with a certificate and cash HK$1,000. Mr. Mingchen Zhu is the 2nd recipient from the Micro-LARGE Lab.  The prize winning paper “Zhu M, Liu Z, Hu W (2020). Observing Water Vapor Variability During Three Super Typhoon Events in Hong Kong Based on GPS Water Vapor Tomographic Modeling Technique. Journal of Geophysical Research: Atmospheres, 125(15). https://doi.org/10.1029/2019JD032318.” was published in 2020 at the American Geophysical Union (AGU)’s Journal of Geophysical Research: Atmospheres by Mingchen Zhu and his supervisors Prof. George Liu at PolyU and Prof. Wusheng Hu at Southeast University. This study for the first time numerically characterizes the water vapor spatial and temporal variations during the life cycle of three super typhoons and demonstrates the effectiveness of using GPS/GNSS water vapor tomographic technique to study water vapor evolution during super typhoon events. This research allows forecasters to have a better understanding and forecasting of the water vapor spatial and temporal variations during tropical cyclones. Congratulations!

Signing of WSD Q-Leak’s MoU on collaboration on education and research

On 29th November 2021, Prof. CHEN Wu, Head of LSGI and Mr. MA Hon-Wing, Wilson, Assistant Director/Development from Water Supplies Department (WSD) of HKSAR Government signed a MoU about the use of the 24,000 sq. ft Q-Leak in Tsing Yi North Service Reservoir. Designed by the Associate Head, Ir Dr. Wallace Lai of LSGI, construction of Q-Leak was completed in late July 2021, and has become the first training hub in the world for providing holistic solutions for diagnosing underground pipe leakage. Jointly with WSD, LSGI will contribute to develop technologies and artificial intelligence/machine learning approaches. The Q-Leak will be a showcase to rest of the world how underground leak can be detected and diagnosed. Two parties will also join to provide education to  PolyU students, researchers and high school students through different STEM program. 

27th Congregation

Congratulations to all our graduates of academic year 2020/21! On 17 November 2021, the 27th Congregation Session for Department of Land Surveying and Geo-Informatics (LSGI) was held at the Jockey Club Auditorium on the PolyU campus as well as online. 55 of MSc, 1 of PgD, 66 of BSc and 42 of HD graduates from LSGI were honoured for completing their studies in 2021. Presiding at the congregation was Prof. Xiang-dong Li, Dean of FCE, who congratulated the graduates and encouraged them to stay connected to PolyU by joining one of its alumni associations. Besides, valedictory speech from the graduate representative Miss Tai Kai Wing of LSGI was inspiring to all graduates and guests. It was a memorable occasion for all concerned.

PolyU LSGI STEM talks for secondary school students (2021/22)

The Department of Land Surveying and Geo-Informatics (LSGI) is holding a STEM Talk Series introducing the daily life applications and potential development of Geo-Informatics, including Land Surveying, Remote Sensing, Global Positioning System (GPS), Underground Utilities Imaging and Diagnosis and Geographic Information Science (GIS). We are glad to invite you to join our STEM Talk Series 2021/22:    STEM Talk Series Topics:  3D Mapping Beyond the Earth: Why and How? (越測越離地：用衛星帶你上火星) Smart City and 3D Mapping in HK (智慧城巿及三維地圖的應用) Seeing and Unseen Underground Utilities in 3D (三維地下管線測量) IoT and Remote Sensing for Tree Monitoring (如何利用IoT及遙感技術監測城市樹木) History of Land Surveying in HK: from Past to Now (土地測量的今昔)   Date: until July 2022 (To be suggested by school) Target Audience: F. 2 - 6 students (both Art and Science students are welcome) Medium: Cantonese or English Venue: Secondary school / PolyU* Speaker: Academic staff of LSGI *Lab tour and demonstration will be arranged for visit to PolyU.   Interested parties can fill in an online application form indicating your preference of talk. For any question, please contact Ms Anna Choi at (852) 3400 8158 or anna.choi@polyu.edu.hk.  Please find more about LSGI at our Facebook or Youtube channel.  LSGI Undergraduate Programme in 2022/23: BSc (Hons) Scheme in Spatial Data Science and Smart Cities (JS3130)    

Prof. Bo Wu gives online lecture in “Science World: Exploring Space to Benefit Mankind” Education Programme

PolyU is organising a new initiative entitled “Science World: Exploring Space to Benefit Mankind” Education Programme in the 2021/22 school year to introduce space sciences and technologies to secondary students. Prof. Bo WU, Associate Head of Department of Land Surveying and Geo-Informatics, was the second speaker giving an online lecture on space-related topic on 23 October 2021 (Saturday). Over 150 audience joined the online talk “Maps for Space Exploration (指引太空探索的地圖)”. The lecture series contain 13 online lectures by PolyU academic staff from mid-October to mid-December 2021. Secondary school teachers and students at all levels are welcome to register individually.

Showcase of Smart Tree Monitoring at the InnoCarnival 2021

Over the years, our professors and researchers have been actively involved in numerous application-oriented research projects. Many of them have been honoured with international acclaim at various invention exhibitions. This year’s, the project of Smart Tree Monitoring by Prof. Charles Wong, Professor of LSGI, was exhibited in PolyU pavilion at InnoCarnival 2021 at Hong Kong Science Park. The pavilion showcases 6 award-winning projects of Geneva Inventions Expo, which cover a wide range of applications, including healthcare, environmental monitoring, smart cities, and automotive safety. Visitors can even experience the interactive game-based learning platform, which was developed by PolyU and received different international educational awards.

PolyU Undergraduate Info Day 2021

Despite the bad weather on 9 Oct, PolyU Undergraduate Info Day 2021 was postponed and successfully held on 10 Oct 2021. LSGI had held 2 admission seminars (One on campus and one online) and a lab tour to introduce our latest undergraduate programmes to potential students and visitors. For 2022-23 entry, scheme-based admission is applied to all PolyU undergraduate programmes. Dr. Yan Wai Yeung and Ir Dr Wallace Lai introduced the "BSc (Hons) Scheme in Spatial Data Science and Smart Cities (JS3130)" with the award programme “BSc (Hons) in Land Surveying and Geo-Informatics” during admission seminars. A new second major in “AI and Data Analytics” is available for LSGI students. Thank you for alumni Mr Sahib Sandhu and Mr Jeffrey Ma coming back and giving sharing on their study at LSGI and career after graduation. It was a fruitful sharing providing useful information about LSGI programme and coming admission requirements.   Recording of LSGI admission seminar can be found here.  Programme Information: Code: JS3130  BSc (Hons) Scheme in Spatial Data Science and Smart Cities Award Programme: BSc (Hons) in Land Surveying and Geo-Informatics Quota: 39 Programme brochure FAQ leaflet